…1859)

* chore(deps): update dependency google-api-python-client to v2.55.0

* use debian-11 instead of debian-9

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

As of Python 3.4, the unittest module in the standard library has
included mock, which means we can remove one external dependency.

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

There are small typos in:
- googleapiclient/discovery_cache/file_cache.py
- samples/analytics/management_v3_reference.py

Fixes:
- Should read `hierarchy` rather than `hiearchy`.
- Should read `accessing` rather than `accesing`.

Signed-off-by: Tim Gates <tim.gates@iress.com>

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

* docs: change googleapiclient import in README docs

* style: improve readability when attempting to access dict value

* refactor: no need to iterate over generator to sort its contents

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Anthonios Partheniou <partheniou@google.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

## Deleted keys were detected in the following stable discovery artifacts:
baremetalsolution v2 01d40f6
cloudchannel v1 91fb069
cloudsearch v1 c5f6895
gameservices v1 876284e

## Deleted keys were detected in the following pre-stable discovery artifacts:
cloudidentity v1beta1 7463513
cloudsupport v2beta 3c68638
gameservices v1beta 876284e

## Discovery Artifact Change Summary:
feat(admin): update the api 69ac3be
feat(adsense): update the api 125ef1d
feat(analyticsadmin): update the api 5d2a6df
feat(authorizedbuyersmarketplace): update the api b1e8c38
feat(baremetalsolution): update the api 01d40f6
feat(beyondcorp): update the api 41eb915
feat(bigquery): update the api 9580b4d
feat(blogger): update the api 8a727f6
feat(chat): update the api 042b80d
feat(chromepolicy): update the api b381018
feat(cloudchannel): update the api 91fb069
feat(cloudidentity): update the api 7463513
feat(cloudsearch): update the api c5f6895
feat(cloudsupport): update the api 3c68638
feat(compute): update the api 678d6aa
feat(connectors): update the api 506f96d
feat(content): update the api f3207d6
feat(dataplex): update the api ce8d53d
feat(dataproc): update the api 540292b
feat(dlp): update the api e6503d3
feat(dns): update the api 13d2f8a
feat(firebase): update the api 7f5f751
feat(gameservices): update the api 876284e
feat(logging): update the api 98d2862
feat(monitoring): update the api 331b5c0
feat(notebooks): update the api d5c8eb8
feat(retail): update the api 929acf8
feat(securitycenter): update the api 70e4256
feat(servicedirectory): update the api fa2c777

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>